Perforator.



No. 755,224. Q 2 PATENIED MAR. 22, 1904. J. (m1..-

V PERPORATOR. APPLICATION rum) we. 3, 1903.

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If-atenteol Maren 22, 1904.

UNITED. STATES PATENT OFFICE.

JOHN GELL, OF LONDON, ENGLAND.

PERFoRAToR.

SPECIFICATION forming part of Letters Patent No. 755,224, dated March 22, 1904.

Application filed August 3, 1903- Serial No. 163,102. (No model.)

To all whom it may concern.-

Be it known that I, JOHN GELL, a subject of the King of Great Britain, residing at London, England, have invented certain new and usefulImprovements in Perforators, of which the following is a'specification.

My invention relates to apparatus for perforating tape, such as is shown in an application for Letters Patent of the United States, filed by me May 9, 1903, No. 156,366.

My present invention concerns more particularly the means for operating. the difierential tape-feed mechanism and also the means for operating the punches.

In the accompanying drawings, Figure 1 is a plan View of the invention. Fig. 2 is a detail sectional view on line 2 2 of Fig. 1 with parts in elevation and parts omitted. Fig. 2

is a detail view. Fig. 3 is a detail sectional by a detent 25.

View on line 3 3 of Fig. '1 with parts in section and parts omitted. Fig. 1 is a sectional view on line 4 4 of Fig. 1 with parts in section and parts omitted. Fig. 5 is a sectional view from front to rear. Figs. 6 and 7 are sectional views of valves.

The tape-feed wheel 1 is on a shaft 2, carrying also a lantern-wheel 3, which is operated for the feed of tape by a feed-pawl 1. The pawl is operated by a feed-girderb, supported by parallel links 6, the said feed-girder being operated for the feed action bythe spring 7 connected to one of the links and to a pin 8, adjustably held by nuts 9. The feed-girder is set toward the left, Fig. 2, against one or the other of stop-feed pins 10 10 10 10, which are controlled through separate setsof tertiary, secondary, and primary "levers 11, 12, and 13, which sets of levers are in turn controlled from the appropriate parallel selecting-bars 1 1 through vertical stems 15.

The parallel selecting-bars are operated,

from selecting-combs 16, connected to and operated by the finger-keys, and as all these parts are fully described in the application referred to they need not be more particularly referred to herein.

In order to set the feed-girder against the stop-feed pin whichhas been thrust across its path by the operation of the finger-key and the interposed mechanism, I employ in my 1 below. the top plate of the machine.

cylinder receives air through the port 34:, and

' of a cylinder 17, suitably fixed to the frame containing a piston 18,:whose piston-rod is connected by a cross-head 19 and links 20 with a lever 21, pivoted in a housing. 22 and having its lower end passing between rollers 23 on the feed-girder.

When air is supplied to the tape-feed cylinder17 through the port 24,, the piston will be operated, and through the link-and-lever connection the feed-girder will be moved leftward and set against the stop -feed pin which has been thrust across its path, and thus the tape-feed mechanism will be set to feed the tape the proper distance for the character punched. On this leftward movement of the feed-girder the feed-pawl slips idly over the pins of the lantern-wheel, and the said lantern-wheel is held against movement When the cylinder exhausts its air back through the port 24, the spring 7 will pull lever'30, pivoted at 31 and connected with a piston 32, operating in a cylinder 33, arranged This on the downward movement of the piston under the air-pressure the pitmen will be drawn down to draw down also the slider and force the selected punches through the tape. When the exhaust of air takes place from this cylinder back through the port 34:, as will be hereinafter described, a spring 3O returns the piston with its lever to their uppermost position, thus raising the slider and the punches.

The'punches are selected and locked to the slider by means of interlocking pins 36, operated through lever and link. mechanism 37 38 from the parallel selecting-bars 14, which are in turn controlled from the keys through the selecting-combs 16. Y

Referring, again,to the pneumatic operating TOQ means, the supply of air to the cylinders of the tape-feed means and the punching mechanism is controlled by valves 39 40, Fig. 1, which are in turn Connected with a suitable source of air-supply and are controlled in their operation from the parallel bar 14 which is in the nature of a universal bar in that it is operated each time the finger-keys are depressed or the space-bar is operated.

One means of controlling the valves from this universal bar is through a lever 11, pivoted in a bracket 42 and having a cross-piece 13, to which are connected rods 44 45, leading, respectively. to the valves 39 4:0. The rods are provided with adjustable check-nuts 16, whereby the relative times of operation of the valves may be controlled from a single lever 41. This lever has a roller bearing on the universal bar 14:X. Each valve comprises a casing, as shown in Fig. 6, the inlet from the source of supply being shown at 47, 48 being the port connected by a pipe 49 with the port of the tape-feed air-cylinder and 50 being the exhaust-port from the valve-easing. The valve proper, 39, is provided with a stem connected with an angular lever 51, pivoted within the casing and carrying the exhaustvalve controlling the exhaust-port 50. A spring 52 returns the parts to normal position. It will be understood that one of these valves is provided for each of the air-cylinders, the pipe connection from the valve 10 to the punch-operating air-cylinder being shown at 53.

The operation of the apparatus: When a key is depressed, the proper stop-feed pin is selooted by the appropriate parallel selectingbar and is thrust across the path of the feedgirder. The proper punches are also selected by the operation of the appropriate parallel selecting-bars. In addition to these operations the universal bar 14 is operated, thus operating the valve-lever 41, which through the properly-adjusted cheek-nuts operates the valves in proper order, so that air is first admitted into the tape-feed cylinder 17, causing the piston 18 to be operated to set the feed-girder against the selected stop-feed pin. Air is then admitted to the punch-operating cylinder, which causes the piston 32 to be forced down, thus forcing the punches through the tape, and then on releasing the key the exhaust takes place, first, from the perforating-cylinder back through its valve and the exhaust-port 50 thereof, and then the exhaust takes place in a similar manner from the feedsetting cylinder back through its valve and port 50, thus allowing the spring 7 to exert its force and turn the lantern-wheel until the check-tooth 54 of the lever 21 arrests the movement of the said lantern-wheel.

It will be understood that the valves 39 and 10 have their exhaust-ports closed when the valve proper of either casing is open to admit air to the cylinder.

It will be also understood that instead of operating the two valves from a single lever, as 41, a separate lever may be used for each valve, and the same sequence of operation may be obtained with these two levers and their properly-adjusted check-nuts as with the single lever, as described.

I do not limit myself to two valve-casings, as of course two valves may be located in the same case.

As shown in Fig. 7, I may use a vertical arrangement of valves in which 55 is the airinlet from the source of supply, 56 is the port connecting with one end of theair-cylinder, and 57 the port connecting with the opposite end of the same cylinder. The valves 58 and 59 are carried by a rod 60, operated through connections similar in function to those before described. There is one of these compound valves for each cylinder, and the purpose is to operate the piston of each cylinder in both directions by direct air-pressure. In the position of the parts shown in Fig. 7 the air would enter from the source of supply through the port 55 and pass through the port 56 to the cylinder containing the piston to be operated, while the exhaust from the other end of the said cylinder would pass out through the port 57 and the exhaust-port 61 into the open air.

\Nhen a key is depressed, the valve is reversed, compressed air being admitted to the cylinder through the port 57, while the exhaust from the said cylinder will now take place through the port 56 and the exhaust-port 62. It will be noticed that in this form of double valve the valves proper are provided with bosses 63 or reduced portions adapted to enter cylindrical portions 64 at the end of the valve-casing and compressed air pressing on the inner surface of either valve gives the necessary pressure to the opposite valve-disk to firmly seat the same.

In Fig. 2 I show a leather or like cushion on end of horizontal girder.

It will be understood that I do not wish to limit myself to the use of pressure of compressed air for operating the machine, for by reversing the action of the valves the machine may be worked by vacuum.

I-claim as my invention 1. In combination in a perforating-machine for tape or the like a series of punches, a series of stops for regulating the action of the tape-feed mechanism, means for selecting the punches into predetermined groups and for setting the stops, said means including a series of parallel selecting-bars and selecting-combs with connections therefrom to a keyboard, pneumatic means for operating the punches, pneumatic means for feeding the tape and valves controlling the said pneumatic means, said valves being controlled by one of the selecting-bars, substantially as described.

2. In combination a series of punches, interlocking pins for selecting said .punches into predetermined groups, a slider for carrying the selected punches down, a series of stopfeed pins, lever connections for setting the said feed-pins, a series of parallel selectingbars for operating the interlocking pins and the lever connections of the stop-feed pins, selecting-combs controlling the selecting-bars, a keyboard with connections to the selectingcombs, pneumatic means for operating the slider, pneurnaticmeans for feeding the tape and valve mechanism controlled from the selecting-bars for controlling the pneumatic means, substantially as described,

3. In combination in a perforating-machine, tape-feed mechanism comprising a feedgirder, links supporting the same, a lanternwheel operated from the feed-girder, a lever 21 having a check-tooth for engaging the lanpresence of two witnesses.

' JOHN GELL.

Witnesses:

H. I). J AMESON, A. NUTTING. 

